1905.] NATURAL SCIENCES OF PHILADELPHIA. 21 



NATIOID^. 



Natioa abyssina Morton, Syn. Org. Rem., 49, pi. 13, f. 13, 1834. 

 Gyrodes petrosus (Morton). 



Natica petrosus Morton, Syn. Org. Rem., 48, pi. 19, f . 6, 1834. 

 Gyrodes spillmanii Gabb, Proc. Acad. Nat. Sci., 1861, p. 320." 



This is probably the same as G. alveata Conrad. 



Gyrodes orenata (Conrad). 



Natica (Gyrodes) crenata Conrad, Jour. Acad. Nat. Sci., IV, 289, 1860. 

 Specimens figured by Whitfield (pi. 16, figs. 5, 6), and co-types. 



Gyrodes infracarinata (Gabb). 



Natica infracarinata Gabb, Proc. Acad. Nat. Sci., 1861, p. 319. 

 Gyrodes abbottii Gabb, Proc. Acad. Nat. Sci., 1861, p. 320. 



Type figured by Whitfield (pi. XV, f. 17). 



Gyrodes obtusivolva Gabb, Proc. Acad. Nat. Sci., 1861, p. 320. 

 Gyrodes altispira (Gabb). 



Lunatia altispira Gabb, Proc. Acad. Nat. Sci., 1861, p. 320. 

 An original label in Gabb's handwriting is marked "Dupl. ij^QsJ' 



Xunatia halli Gabb, Jour. Acad. Nat. Sci., IV (2 ser.), 391, pi. 68, f. 11, 1860. 



Also specimen figured by Wliitfield (pi. 16, figs. 13, 14). 



Amauropsis meekana Whitfield, Mon. U. S. Geol. Sur.. XVIII, 131, pi. 16, figs. 22-25, 1892. 



Amauropsis punctata (Gabb). 



Phasianella punctata Gabb, Jour. Acad. Nat. Sci., IV, 2 ser., 299, pi. 48, 

 f. 3, 1860. 



Also specimens figured by Wliitfield (pi. 16, figs. 19-21). 



XENOPHORID^. 

 Xenophora leprosa (Morton). 



Trochus leprosus Morton, Syn. Org. Rem., 46, pi. 15, f. 6, 1834. 

 Also specimen figured by Whitfield (pi. 17, figs. 16, 17). 



TURRITELLIDu^E. 

 Turritella vertebroides Morton, Syn. Org. Rem., 47, pi. 3, f. 13, 1834. 

 Turritella encrinoides Morton, Syn. Org. Rem., 47, pi. 3, f. 7, 1834. 

 Turritella granulicosta Gabb, Proc. Acad. Nat. Sci., 1861, p. 363. 



Type figured by Whitfield (pi. 18, figs. 10, 11). 



Turritella pumila Gabb. 



Specimen figured by Wliitfield (pi. 23, figs. 5, 6). 



Turritella compacta Whitfield, Mon. U. S. Geol. Sur., XVIII, 142, pi. 18, figs. 8, 9. 

 Turritella quadrilirata Johnson, Proc. Acad. Nat. Sci., 1S98, p. 463. 



VERMETIDu^. 

 Siliquaria pauperata Whitfield, Mon. U. S. Geol. Sur., XVIII, 149, pi. 18, figs. 26, 27, 2S, 1892. 

 Included by Gabb under Laxispira lumhricalis. 



